High Threat Security Alert (A22-03-04): Multiple Vulnerabilities in Firefox

Description:

Mozilla has published the advisory (MFSA2022-09) to address multiple vulnerabilities in Firefox browser. A remote attacker could entice a user running a vulnerable browser to visit a web page with specially crafted content to exploit the vulnerabilities.

Reports indicate that the vulnerabilities (CVE-2022-26485 and CVE-2022-26486) are being exploited in the wild.  Users are advised to take immediate action to patch the affected systems to mitigate the elevated risk of cyber attacks.

Affected Systems:

• Firefox Windows versions prior to version 97.0.2
• Firefox ESR Windows versions prior to version 91.6.1

Impact:

Successful exploitation of the vulnerabilities could lead to remote code execution or security restriction bypass on an affected system.

Recommendation:

Mozilla has released new versions of the product to address the issues and they can be downloaded at the following URLs:

• Firefox 97.0.2 for Windows
  https://www.mozilla.org/en-US/firefox/all/#product-desktop-release
• Firefox ESR 91.6.1 for Windows
  https://www.mozilla.org/en-US/firefox/all/#product-desktop-esr

Users of affected systems should follow the recommendations provided by the product vendor and take immediate actions to mitigate the risk.

More Information:

• https://www.mozilla.org/en-US/security/advisories/mfsa2022-09/
• https://www.hkcert.org/security-bulletin/mozilla-products-multiple-vulnerabilities_20220307
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-26485
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2022-26486